CD13阳性见于（）
A.急性B淋巴细胞白血病
B.急性T淋巴细胞白血病
C.急性粒细胞白血病
D.急性红白血病
E.急性巨核细胞白血病
参考答案：C
---What were you doing when the UFO ______?
---I ______ a milk shake.
A．reached, made
B．reached, was making
C．arrived, made
D．arrived, was making
下列属于物质范畴的是（）
①人脑
②科学发展观
③生产关系
④思想观念
⑤国家
A.①③⑤
B.①②⑤
C.②③④
D.②③⑤
